Roof assembly



FIG. 1 is a perspective view of a roof assembly according to our new design;

FIG. 2 is a front elevational view of the roof assembly of FIG. 1;

FIG. 3 is a rear elevational view of the roof assembly of FIG. 1;

FIG. 4 is a top plan view of the roof assembly of FIG. 1;

FIG. 5 is a right side elevational view of the roof assembly of FIG. 1; and,

FIG. 6 is a left side elevational view of the roof assembly of FIG. 1.

The broken lines illustrate portions of the roof assembly that form no part of claimed design. 

CLAIM The ornamental design for a roof assembly, as shown and described. 